¿Por qué IntentReceiverLeaked?

Quiero recibir una String del servidor Bluetooth que es pc Tengo un código java para ello pero cuando ejecuto mi Activity cliente de Android me muestra esta excepción

 Activity com.waseem.mobileclient.bluetoot_app.MainActivity has leaked IntentReceiver com.waseem.mobileclient.bluetoot_app.MainActivity$1@410480f0 that was originally registered here. Are you missing a call to unregisterReceiver()? android.app.IntentReceiverLeaked: Activity com.waseem.mobileclient.bluetoot_app.MainActivity has leaked IntentReceiver com.waseem.mobileclient.bluetoot_app.MainActivity$1@410480f0 that was originally registered here. Are you missing a call to unregisterReceiver()? at android.app.LoadedApk$ReceiverDispatcher.<init>(LoadedApk.java:792) at android.app.LoadedApk.getReceiverDispatcher(LoadedApk.java:593) at android.app.ContextImpl.registerReceiverInternal(ContextImpl.java:1111) at android.app.ContextImpl.registerReceiver(ContextImpl.java:1098) at android.app.ContextImpl.registerReceiver(ContextImpl.java:1092) at android.content.ContextWrapper.registerReceiver(ContextWrapper.java:365) at com.waseem.mobileclient.bluetoot_app.MainActivity.onCreate(MainActivity.java:68) at android.app.Activity.performCreate(Activity.java:5008)

Estoy onPause() registro en onPause() por qué estoy recibiendo esta excepción por favor ayúdame a cabo Me ha atrapado durante mucho tiempo. aquí está el código del cliente

 @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); if (myBluetoothAdapter == null) { Log.e(TAG, "No Bluetooth Adapter available. Exiting..."); this.finish(); } IntentFilter intent_filter=new IntentFilter(MESSAGE_RECEIVED_INTENT); broad_receiver=new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { if (intent.getAction().equals(MESSAGE_RECEIVED_INTENT)) { showInformation(intent.getExtras().getString("Message"), 5000); getVibrator().vibrate(500); } else { showInformation("Message unable to receive", 5000); getVibrator().vibrate(500); } } }; this.registerReceiver(broad_receiver,intent_filter); Button start_server = (Button)findViewById(R.id.button_start); start_server.setOnClickListener(this); Button stop_server = (Button)findViewById(R.id.button_stop); stop_server.setOnClickListener(this); } @Override protected void onPause() { this.unregisterReceiver(this.broad_receiver); super.onPause(); server.cancel(); restoreBTDeviceName(); } @Override public void onClick(View v) { Button btn = (Button) v; if (btn.getId() == R.id.button_start) { if (!myBluetoothAdapter.getName().startsWith(PREFIX)) myBluetoothAdapter.setName(PREFIX ); if (myBluetoothAdapter.getScanMode() != BluetoothAdapter.SCAN_MODE_CONNECTABLE_DISCOVERABLE) { requestBTDiscoverable(); server = new AcceptThread(); server.start(); btn.setEnabled(false); ((Button) this.findViewById(R.id.button_stop)).setEnabled(true); } } else if (btn.getId() == R.id.button_stop) { server.cancel(); btn.setEnabled(false); ((Button) this.findViewById(R.id.button_start)).setEnabled(true); restoreBTDeviceName(); } } /** * Launches Discoverable Bluetooth Intent. */ public void requestBTDiscoverable() { Intent i = new Intent(BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE); i.putExtra(BluetoothAdapter.EXTRA_DISCOVERABLE_DURATION, 300); startActivityForResult(i, REQUEST); int result = 0; this.onActivityResult(REQUEST, result, i); Log.i(TAG, "Bluetooth discoverability enabled"); } /** * Obtains the Vibrator service. * * @return Vibrator Object. */ private Vibrator getVibrator() { return (Vibrator) getSystemService(VIBRATOR_SERVICE); } /** * Removes the prefix from the device name if the prefix is present. */ private void restoreBTDeviceName() { if (myBluetoothAdapter.getName().startsWith(PREFIX)) myBluetoothAdapter.setName(myBluetoothAdapter.getName().substring(PREFIX.length())); } /** * Shows a information dialog. * * @param message String resource used to define the message. * @param duration Dialog's TTL. */ private void showInformation(String message, long duration) { final Dialog mDialog = new Dialog(this); TextView txt = new TextView(this); txt.setText(message); mDialog.setContentView(txt); mDialog.setTitle("Information"); mDialog.show(); (new Handler()).postDelayed(new Runnable() { public void run() { mDialog.dismiss(); } },duration); // Close dialog after delay } /** * ************************************* AcceptThread ************************************* */ class AcceptThread extends Thread { /** * Tag that will appear in the log. */ private final String ACCEPT_TAG = AcceptThread.class.getName(); /** * The bluetooth server socket. */ private final BluetoothServerSocket mServerSocket; public AcceptThread() { BluetoothServerSocket tmp = null; try { tmp = myBluetoothAdapter.listenUsingRfcommWithServiceRecord(ACCEPT_TAG, UUID.fromString(defaultUUID)); } catch (IOException e) { e.printStackTrace(); } mServerSocket = tmp; } public void run() { BluetoothSocket socket = null; while (true) { try { Log.i(ACCEPT_TAG, "Listening for a connection..."); socket = mServerSocket.accept(); Log.i(ACCEPT_TAG, "Connected to " + socket.getRemoteDevice().getName()); } catch (IOException e) { break; } // If a connection was accepted if (socket != null) { // Do work to manage the connection (in a separate thread) try { // Read the incoming string. String buffer; DataInputStream in = new DataInputStream(socket.getInputStream()); buffer = in.readUTF(); Intent i = new Intent(MESSAGE_RECEIVED_INTENT); i.putExtra("Message", String.format("%sn From: %s", buffer, socket.getRemoteDevice().getName())); getBaseContext().sendBroadcast(i); } catch (IOException e) { Log.e(ACCEPT_TAG, "Error obtaining InputStream from socket"); e.printStackTrace(); } try { mServerSocket.close(); } catch (IOException e) { } break; } } } /** * Will cancel the listening socket, and cause the thread to finish */ public void cancel() { try { mServerSocket.close(); } catch (IOException e) { } } }

La primera línea de LogCat dice:

¿Te has perdido una llamada a unregisterReceiver ()?

Simplemente significa que necesita revisar la documentación de la API de BroadcastReceiver para obtener ayuda, que dice:

Nota: Si registra un receptor en su implementación de Activity.onResume() , debe anular su registro en Activity.onPause() . (No recibirá intenciones cuando se detiene, y esto reducirá la sobrecarga innecesaria del sistema). No anule el registro en Activity.onSaveInstanceState() , porque no se llamará si el usuario se mueve de nuevo en la pila de historial.